Update aosp/master LLVM with patches for fp16

Cherry-pick LLVM revisions r235191, r235215, r235220, r235341, r235363,
r235530, r235609, r235610, r237004

r235191 has a required bug-fix and the rest are all related to fp16.

Change-Id: I7fe8da5ffd8f2c06150885a54769abd18c3a04c6
(cherry picked from commit a18e6af1712fd41c4a705a19ad71f6e9ac7a4e68)

1 files changed, 98 insertions, 0 deletions

diff --git a/test/CodeGen/Mips/fp16-promote.ll b/test/CodeGen/Mips/fp16-promote.ll
new file mode 100644
index 0000000..2ac46e0
--- /dev/null
+++ b/test/CodeGen/Mips/fp16-promote.ll
@@ -0,0 +1,98 @@
+; RUN: llc -asm-verbose=false -mtriple=mipsel-linux-gnueabi < %s | FileCheck %s -check-prefix=CHECK-LIBCALL
+
+; CHECK-LIBCALL-LABEL: test_fadd:
+; CHECK-LIBCALL: %call16(__gnu_h2f_ieee)
+; CHECK-LIBCALL: %call16(__gnu_h2f_ieee)
+; CHECK-LIBCALL-DAG: add.s
+; CHECK-LIBCALL-DAG: %call16(__gnu_f2h_ieee)
+define void @test_fadd(half* %p, half* %q) #0 {
+  %a = load half, half* %p, align 2
+  %b = load half, half* %q, align 2
+  %r = fadd half %a, %b
+  store half %r, half* %p
+  ret void
+}
+
+; CHECK-LIBCALL-LABEL: test_fpext_float:
+; CHECK-LIBCALL: %call16(__gnu_h2f_ieee)
+define float @test_fpext_float(half* %p) {
+  %a = load half, half* %p, align 2
+  %r = fpext half %a to float
+  ret float %r
+}
+
+; CHECK-LIBCALL-LABEL: test_fpext_double:
+; CHECK-LIBCALL: %call16(__gnu_h2f_ieee)
+; CHECK-LIBCALL: cvt.d.s
+define double @test_fpext_double(half* %p) {
+  %a = load half, half* %p, align 2
+  %r = fpext half %a to double
+  ret double %r
+}
+
+; CHECK-LIBCALL-LABEL: test_fptrunc_float:
+; CHECK-LIBCALL: %call16(__gnu_f2h_ieee)
+define void @test_fptrunc_float(float %f, half* %p) #0 {
+  %a = fptrunc float %f to half
+  store half %a, half* %p
+  ret void
+}
+
+; CHECK-LIBCALL-LABEL: test_fptrunc_double:
+; CHECK-LIBCALL: %call16(__truncdfhf2)
+define void @test_fptrunc_double(double %d, half* %p) #0 {
+  %a = fptrunc double %d to half
+  store half %a, half* %p
+  ret void
+}
+
+; CHECK-LIBCALL-LABEL: test_vec_fpext_float:
+; CHECK-LIBCALL: %call16(__gnu_h2f_ieee)
+; CHECK-LIBCALL: %call16(__gnu_h2f_ieee)
+; CHECK-LIBCALL: %call16(__gnu_h2f_ieee)
+; CHECK-LIBCALL: %call16(__gnu_h2f_ieee)
+define <4 x float> @test_vec_fpext_float(<4 x half>* %p) #0 {
+  %a = load <4 x half>, <4 x half>* %p, align 8
+  %b = fpext <4 x half> %a to <4 x float>
+  ret <4 x float> %b
+}
+
+; This test is not robust against variations in instruction scheduling.
+; See the discussion in http://reviews.llvm.org/D8804
+; CHECK-LIBCALL-LABEL: test_vec_fpext_double:
+; CHECK-LIBCALL: %call16(__gnu_h2f_ieee)
+; CHECK-LIBCALL: %call16(__gnu_h2f_ieee)
+; CHECK-LIBCALL: %call16(__gnu_h2f_ieee)
+; CHECK-LIBCALL: cvt.d.s
+; CHECK-LIBCALL: cvt.d.s
+; CHECK-LIBCALL: cvt.d.s
+; CHECK-LIBCALL: %call16(__gnu_h2f_ieee)
+; CHECK-LIBCALL: cvt.d.s
+define <4 x double> @test_vec_fpext_double(<4 x half>* %p) #0 {
+  %a = load <4 x half>, <4 x half>* %p, align 8
+  %b = fpext <4 x half> %a to <4 x double>
+  ret <4 x double> %b
+}
+
+; CHECK-LIBCALL-LABEL: test_vec_fptrunc_float:
+; CHECK-LIBCALL: %call16(__gnu_f2h_ieee)
+; CHECK-LIBCALL: %call16(__gnu_f2h_ieee)
+; CHECK-LIBCALL: %call16(__gnu_f2h_ieee)
+; CHECK-LIBCALL: %call16(__gnu_f2h_ieee)
+define void @test_vec_fptrunc_float(<4 x float> %a, <4 x half>* %p) #0 {
+  %b = fptrunc <4 x float> %a to <4 x half>
+  store <4 x half> %b, <4 x half>* %p, align 8
+  ret void
+}
+
+; CHECK-LIBCALL-LABEL: test_vec_fptrunc_double:
+; CHECK-LIBCALL: %call16(__truncdfhf2)
+; CHECK-LIBCALL: %call16(__truncdfhf2)
+; CHECK-LIBCALL: %call16(__truncdfhf2)
+; CHECK-LIBCALL: %call16(__truncdfhf2)
+define void @test_vec_fptrunc_double(<4 x double> %a, <4 x half>* %p) #0 {
+  %b = fptrunc <4 x double> %a to <4 x half>
+  store <4 x half> %b, <4 x half>* %p, align 8
+  ret void
+}
+